Average Co-Inventor Count = 1.91
ph-index = 10
The patent ph-index is calculated by counting the number of publications for which an author has been cited by other authors at least that same number of times.
Company Filing History:
1. At&t Intellectual Property I, L.p. (26 from 16,478 patents)
2. At+t Corp. (13 from 4,208 patents)
39 patents:
1. 9338191 - Session initiation protocol (SIP) message incorporating a number of predetermined address headers having predetermined address information
2. 9225749 - System and method for providing multi-media services to communication devices over a communications network
3. 8897287 - System and method for processing a plurality of requests for a plurality of multi-media services
4. 8891741 - Call control element constructing a session initiation protocol (SIP) message including provisions for incorporating address related information of public switched telephone network (PSTN) based devices
5. 8879542 - Method for providing local and toll services with LNP, and toll-free services to a calling party which originates the call from an IP location connected to a SIP-enabled IP network
6. 8787360 - Method and apparatus for processing multiple services per call
7. 8732248 - System and method for providing multi-media services to communication devices over a communications network
8. 8634412 - Session initiation protocol (SIP) message incorporating a multi-purpose internet mail extension (MIME) media type for describing the content and format of information included in the SIP message
9. 8576992 - Mixed protocol multi-media provider system incorporating a session initiation protocol (SIP) based media server adapted to operate using SIP messages which encapsulate GR-1129 advanced intelligence network based information
10. 8451820 - System and method for processing a plurality of requests for a plurality of multi-media services
11. 8363648 - Session initiation protocol (SIP) message incorporating a multi-purpose internet mail extension (MIME) media type for describing the content and format of information included in the SIP message
12. 8306019 - Method for providing local and toll services with LNP, and toll-free services to a calling party which originates the call from an IP location connected to a SIP-enabled IP network
13. 8255463 - System and method for providing multi-media services to communication devices over a communications network
14. 8165113 - Session initiation protocol (SIP) message incorporating a number of predetermined address headers having predetermined address information
15. 8160214 - Mixed protocol multi-media provider system incorporating a session initiation protocol (SIP) based media server adapted to operate using SIP messages which encapsulate GR-1129 advanced intelligence network based information